参数资料
型号: FT4232H MINI MODULE
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 27/45页
文件大小: 0K
描述: MOD USB HS FT4232H EVAL
产品变化通告: Part Number Change Jan 2011
产品目录绘图: FT(22, 42)32HQ MINI MOD
标准包装: 5
主要目的: 接口,USB 2.0 至 UART(RS232)电桥
嵌入式: 是,ASIC
已用 IC / 零件: FT4232H
主要属性: 高速,300 波特 ~ 12 M 波特,安全识别号
次要属性: 仿真 JTAG、SPI、I2C、位响应或其它同步串行
已供物品:
产品目录页面: 633 (CN2011-ZH PDF)
相关产品: FT4232HQ - TRAY-ND - IC USB HS QUAD UART/SYNC 64-QFN
FT4232HL - TRAY-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-6-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-6-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-1-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-1-ND - IC USB HS QUAD UART/SYNC 64-LQFP
768-1027-2-ND - IC USB HS QUAD UART/SYNC 64-QFN
768-1026-2-ND - IC USB HS QUAD UART/SYNC 64-LQFP
其它名称: 768-1031
FT4232HQ_MINI MOD
Copyright 2010 Future Technology Devices International Limited
33
Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.2
Clearance No.: FTDI#78
6.3 Oscillator Configuration
Figure 6.5 Recommended FT4232H Crystal Oscillator Configuration.
Figure 6.5 illustrates how to connect the FT4232H with a 12MHz ± 0.003% crystal. In this case loading
capacitors should to be added between OSCI, OSCO and GND as shown. A value of 27pF is shown as the
capacitor in the example – this will be good for many crystals but it is recommended to select the loading
capacitor value based on the manufacturer’s recommendations wherever possible. It is recommended to
use a parallel cut type crystal.
It is also possible to use a 12 MHz oscillator with the FT4232H. In this case the output of the oscillator
would drive OSCI, and OSCO should be left unconnected. The oscillator must have a CMOS output drive
capability.
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
OSCI Vin
Input Voltage
2.97
3.30
3.63
V
FIn
Input Frequency
12
MHz
+/- 30ppm
Ji
Cycle to cycle jitter
< 150
pS
Table 6.1 OSCI Input characteristics
OSCI
OSCO
2
3
FT4232H
Crystal
12MHz
27pF
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